Manual > Monitoring System Construction Guide > Construction of Major Functions > Energy Management (EMS) > Energy Management in Practice > Example of Group Settings for Energy Management

Example of group settings

There are two grouping concepts on the energy management screen: "point groups" and "graph groups."

Here we will introduce some specific examples of the point groups and graph groups that are actually set up in this sample.

If you want to know the basic concept of energy management grouping, please refer to "Point Groups and Graph Groups".

■ Equipment requirements for this setting example

In this configuration example, we assume that there is monitored equipment with the following requirements:

•The business entity can be broadly divided into three parts: Head Office, Business Office A, and Business Office B.

•The head office is divided into two floors, "1F" (department 1) and "2F" (department 2). Business office A and business office B are each considered as one department.

•There are three air conditioners in the head office, which are shared throughout the entire office.

•The common areas of the head office include a shop, outdoor lighting, and common areas (such as the entrance), which are used by the entire head office.

•The head office is equipped with solar power generation facilities, and the electricity generated by these facilities is shared and used throughout the entire head office.

•The floor area of the first and second floors of the head office is roughly 7:3. Therefore, the floor area ratio for air conditioners, common areas, and solar power generation will be 7:3 for the first and second floors.

•Gas is only used by the head office. There is one parent gas meter for the entire building and one child meter that shows the gas usage for the 1st floor. The gas usage for the 2nd floor can be calculated by subtracting the total from the 1st floor.

•Data on outside temperature, outside humidity, and rainfall is collected as measurement points.

In addition, the following fields are registered in the summary action as the above metering points and measurement points, and logging, daily report aggregation, monthly report aggregation, and annual report aggregation are performed.

Field Name	name	unit	remarks
T000	Head office air conditioner 1 power consumption	kWh	Air conditioners shared across the head office. The usage ratio between 1st and 2nd floors is 7:3.
T001	Head office air conditioner 2 power consumption	kWh	Ibid.
T002	Head office air conditioner 3 power consumption	kWh	Ibid.
T003	Headquarters 1F lighting power consumption	kWh
T004	Headquarters 2nd floor lighting power consumption	kWh
T005	Headquarters 1F outlet power consumption	kWh
T006	Headquarters 2F outlet power consumption	kWh
T007	Head office exterior lighting power consumption	kWh	Head office common area. The usage ratio of 1st and 2nd floors is 7:3.
T008	Electricity consumption at head office store	kWh	Ibid.
T009	Electricity consumption for head office common area	kWh	Ibid.
T010	Head office gas usage (main meter)	m3	Gas usage throughout the head office.
T011	Head office 1F gas usage (sub meter)	m3	Gas usage for the 1st floor of the head office only. Gas usage for the 2nd floor is calculated by total - 1st floor.
T012	Air conditioner power consumption at business site A	kWh
T013	Power consumption at outlet of business site A	kWh
T014	Lighting power consumption at business site A	kWh
T015	Business site B air conditioner power consumption	kWh
T016	Business location B outlet power consumption	kWh
T017	Lighting power consumption at business site B	kWh
T018	Outside temperature	℃
T019	Outside humidity	%RH
T020	Rainfall	mm
T021	Solar power generation at head office	kWh	Power generation equipment shared with the head office. The usage ratio of 1F and 2F is 7:3.

■ Group setting example

Below is a concrete example of group configuration based on the above assumptions.

Graph Group	Conversion Graph Display check	Proration	Point Groups	Consumption/Power Generation	Weighing Point	remarks
Head Office 1F Power Breakdown	[　]	70	001 Head Office Air Conditioning Power	Consumption	T000 Head Office Air Conditioner 1 Power Consumption	Air conditioning power is apportioned 7:3 between the 1st and 2nd floors.
				Consumption	T001 Headquarters air conditioner 2 power consumption
				Consumption	T002 Headquarters air conditioner 3 power consumption
		100	006 Head Office 1F Lighting Power	Consumption	T003 Headquarters 1F lighting power consumption
		100	007 Head Office 1F Power Outlet	Consumption	T005 Head Office 1F Power Consumption
		70	004 Head Office Shared Power	Consumption	T007 Headquarters exterior lighting power consumption	Shared electricity will be apportioned between the 1st and 2nd floors in a ratio of 7:3.
				Consumption	T008 Head Office Shop Power Consumption
				Consumption	T009 Headquarters common area power consumption
		70	021 Headquarters solar power generation	Power generation	T021 Headquarters solar power generation capacity	70% of the electricity generated is assumed to be 1F.
Head Office 2F Power Breakdown	[　]	30	001 Head Office Air Conditioning Power	Consumption	T000 Head Office Air Conditioner 1 Power Consumption	Air conditioning power is apportioned 7:3 between the 1st and 2nd floors.
				Consumption	T001 Headquarters air conditioner 2 power consumption
				Consumption	T002 Headquarters air conditioner 3 power consumption
		100	008 Head Office 2F Lighting Power	Consumption	T004 Head Office 2F Lighting Power Consumption
		100	009 Head Office 2F Power Outlet	Consumption	T006 Head Office 2F Power Consumption
		30	004 Head Office Shared Power	Consumption	T007 Headquarters exterior lighting power consumption	Shared electricity will be apportioned between the 1st and 2nd floors in a ratio of 7:3.
				Consumption	T008 Head Office Shop Power Consumption
				Consumption	T009 Headquarters common area power consumption
		30	021 Headquarters solar power generation	Power generation	T021 Headquarters solar power generation capacity	2F accounts for 30% of the electricity generated.
Head Office Gas Breakdown	[　]	100	010 Head Office 1F Gas	Consumption	T011 Head Office 1F Gas Usage (Sub-meter)
		100	011 Head Office 2F Gas	Consumption	T010 - T011	Calculated using parent meter - child meter.
main office	[✔]	100	001 Head Office Air Conditioning Power	Consumption	T000 Head Office Air Conditioner 1 Power Consumption
				Consumption	T001 Headquarters air conditioner 2 power consumption
				Consumption	T002 Headquarters air conditioner 3 power consumption
		100	002 Head Office Lighting Power	Consumption	T003 Headquarters 1F lighting power consumption
				Consumption	T004 Head Office 2F Lighting Power Consumption
		100	003 Head Office Power Outlet	Consumption	T005 Head Office 1F Power Consumption
				Consumption	T006 Head Office 2F Power Consumption
		100	021 Headquarters solar power generation	Power generation	T021 Headquarters solar power generation capacity
		100	004 Head Office Shared Power	Consumption	T007 Headquarters exterior lighting power consumption
				Consumption	T008 Head Office Shop Power Consumption
				Consumption	T009 Headquarters common area power consumption
		100	005 Head Office Gas	Consumption	T010 Head office gas usage (parent meter)
Business location A	[✔]	100	012 Office A Air conditioning power	Consumption	T012 Office A air conditioner power consumption
		100	013 Office A Power Outlet	Consumption	T013 Power consumption at outlets in business location A
		100	014 Office A Lighting power	Consumption	T014 Office A lighting power consumption
Business location B	[✔]	100	015 Office B Air conditioning power	Consumption	T015 Office B air conditioner power consumption
		100	016 Office B Power Outlet	Consumption	T016 Business location B outlet power consumption
		100	017 Office B Lighting power	Consumption	T017 Office B lighting power consumption
Power Rank by Department	[　]	100	018 Head Office 1F Power	Consumption	T000 Headquarters air conditioner 1 power consumption* 0.7	70% of the air conditioning power is assumed for the first floor.
				Consumption	T001 Headquarters air conditioner 2 power consumption* 0.7
				Consumption	T002 Headquarters air conditioner 3 power consumption* 0.7
				Consumption	T003 Headquarters 1F lighting power consumption
				Consumption	T005 Head Office 1F Power Consumption
				Consumption	T007 Head office exterior lighting power consumption* 0.7	70% of the electricity for the common areas will be used for the 1st floor.
				Consumption	T008 Head Office Shop Power Consumption* 0.7
				Consumption	T009 Electricity consumption in the head office common area * 0.7
		100	019 Head Office 2F Power	Consumption	T000 Headquarters air conditioner 1 power consumption* 0.3	Assume that 30% of the air conditioning power is for the 2nd floor.
				Consumption	T001 Headquarters air conditioner 2 power consumption* 0.3
				Consumption	T002 Headquarters air conditioner 3 power consumption* 0.3
				Consumption	T004 Head Office 2F Lighting Power Consumption
				Consumption	T006 Head Office 2F Power Consumption
				Consumption	T007 Head office outdoor lighting power consumption* 0.3	30% of the shared power will be for 2F.
				Consumption	T008 Head Office Shop Power Consumption* 0.3
				Consumption	T009 Electricity consumption in the head office common area * 0.3
		100	020 Business A Electricity	Consumption	T012 Office A air conditioner power consumption
				Consumption	T013 Power consumption at outlets in business location A
				Consumption	T014 Office A lighting power consumption
		100	021 Business B Electricity	Consumption	T015 Office B air conditioner power consumption
				Consumption	T016 Business location B outlet power consumption
				Consumption	T017 Office B lighting power consumption

■Explanation

A point group can have multiple metering points registered across multiple point groups. When assigning metering points to a point group, it is possible to write an arithmetic expression, and by writing an expression such as *0.7, the metering value can be apportioned and imported (example: common area electricity), or the calculation results of metering points can be imported (example: gas meter).

In addition, multiple point groups can be registered in a graph group, overlapping across the graph groups. When assigning a point group to a graph group, it is possible to specify an apportionment ratio, and the total value of the point group can be apportioned and imported into the graph group.

Of the graph groups above, "Entire head office", "Power at business site A", and "Power at business site B" are set up with the assumption that they will be displayed on the conversion graph. The graph group settings include a check box for whether or not to display on the conversion graph, and the converted total value for each checked graph group is displayed as a single bar on the conversion graph. In this example, by checking "Entire head office", "Power at business site A", and "Power at business site B", the totals for each of these three graph groups will be displayed as three bar graphs. Note that measurement points can be registered in duplicate in a point group, so make sure to set it so that the values add up when the conversion graph is displayed (so that measurement values are not tallied up in duplicate).

In addition, at the head office, the electricity generated by the solar power generation equipment, which is a form of energy creation, is recorded as "power generation," making it possible to display the amount of power generated on the consumption/power generation display in the usage graph.

Of the graph groups above, "Power Rank by Department" is a group that was registered with the intention of displaying it in a ranking graph. The ranking graph is displayed in order of the number of point groups registered in the graph group. Therefore, in addition to preparing a graph group for ranking display, you should also register point groups in the units for which you want to display rankings.

Example of group settings for energy management

Example of group settings for energy management